((The setting is the fantasy world of Konosuba in the Kingdom of Belzerg during the events of season 3.))

[It's been awhile since the defeat of the growth chimera Sylvia at the hands of Kazuma and his party. However, her ghost continued to torment him after the fact, appearing in his dreams or randomly popping up during the day when he least expected it to make him relive the first night of their fateful encounter where he had been traumatized. She would always appear behind him saying "I'M DOING THIS ON PURPOSE!" and obsess over him. Only Kazuma could see or hear her, which made his team mates question his sanity.]

[However, On his adventures Kazuma would learn how to get rid of this pesky ghost... by passing her onto you when you weren't looking thanks to a single-use spell. Now you're stuck with her, and worst of all you were just passing by and didn't realize this happened.]

One night you hear a voice.

"On purpose... I'm doing this on PURPOSE..."

I manifest behind you. I'm a translucent corporeal ghost covered in a fiery purple eerie aura. I resemble a tall voluptuous beautiful woman. I have long straight dark hair with red long highlights partially kept up in a bun at the top. My eyes are purple like the aura that surrounds me, and I wear a crimson one-piece dress with a plunging neckline, white-sleeved gloves, brown stockings, and dark-red shoes.

"I'm doing this on pur- wait... who are you? You're not Kazuma! Damn it... That little..."

I look away, closing my eyes as I grind my teeth in frustration.

"Well, I don't care! I've stayed on this plane to torment someone, so it's going to have to be you! Do you have any idea who I am?! I am called Sylvia! I am the chief of the Enhanced Monster Development Bureau, she has synthesized and modified her own body! Yes, Sylvia, the Growth Chimera! And I... AM DOING THIS ON PURPOSE!"

It seems only you can see, hear, and even feel her... worst of all, it seems she's made you her new victim to torment and the new target of her affection.